Books by Ralph L. Westfall:
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Westfall, Ralph L.: Marketing Research: Text and Cases (Homewood, IL: R. D. Irwin, 1956), also by Harper W. Boyd (page images at HathiTrust)
Additional books by Ralph L. Westfall in the extended shelves:
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Westfall, Ralph L.: Advertising procedures and practices of agricultural commodity promotion groups (Marketing Economics Division, Economic Research Service, U.S. Dept. of Agriculture, 1962), also by Robert E. Frye and Harper W. Boyd (page images at HathiTrust)- Westfall, Ralph L.: Cases in marketing management (Irwin, 1961), also by Harper W. Boyd (page images at HathiTrust)
- Westfall, Ralph L.: The probable effect of a new major outlying shopping center on an established suburban shopping center (Old Orchard, Skokie and Fountain Square, Evanston) (Evanston, Ill., 1956), also by Clyde Frederick Kohn and Ill.). Center for Metropolitan Studies Northwestern University (Evanston (page images at HathiTrust; US access only)
Find more by Ralph L. Westfall at your library, or elsewhere.